基于功率前馈补偿控制的BDFG励磁变换器控制策略研究  

Control Strategy of the Converter Used in Brushless Doubly Fed Generator System with the Power of Feed-forward Compensation

作　　者：郭鹏[1] 姜忠山[1] 王赛[2] 

机构地区：[1]海军航空工程学院控制工程系 [2]91206部队

出　　处：《船电技术》2015年第8期36-39,共4页Marine Electric & Electronic Engineering

摘　　要：双PWM交直交型变换器适应于无刷双馈变速恒频电源系统,可以实现能量的双向流动。然而,随着发电机运行状态的改变,变换器功率流动方向会发生变化,这将会引起直流侧电压的波动,不利于整个系统的稳定运行。结合无刷双馈发电机的运行特点,在对网侧变换器传统电压电流双闭环控制的基础上,提出了基于无刷双馈电机机侧变换器功率补偿的控制策略,提高了直流侧电压的稳定性,并通过仿真进行验证。Dual PWM AC-DC-AC converter is applied to a brushless doubly fed generator （BDFG） system to realize the two-way flow of energy. However, with the change of the operation status of the BDFG, the converter power flow direction is changed, which causes the fluctuation of DC side voltage, and is not conducive to the stable operation of the whole system. Combined with the operating characteristics of BDFG, and based on the traditional voltage and current double closed loop control of grid side converter, the control strategy of BDFG stator winding transformer based on power compensation is proposed to improve the stability of the DC side voltage, and is verified by simulation.

关 键 词：无刷双馈发电机 双PWM变换器 直流侧电压 功率前馈补偿 

分 类 号：TM464[电气工程—电器]